Act as a startup finance software architect. Create a Startup Runway and Burn Rate Calculator using HTML, CSS and Vanilla JavaScript. Requirements: 1. Blogger compatible single-file code. 2. Inputs: - Current Cash Balance - Monthly Revenue - Monthly Expenses - Monthly Growth Rate 3. Calculate: - Net Burn Rate - Runway Months - Break-even Month - Cash Remaining Projection 4. Generate: - Runway Forecast Chart - Cash Flow Timeline 5. Scenario analysis: Best Case Expected Case Worst Case 6. Risk Alerts: Less than 6 months runway Less than 3 months runway 7. Dashboard cards. 8. Dark mode. 9. Mobile responsive. 10. LocalStorage support. 11. Export PDF report. 12. Professional SaaS dashboard style. Generate complete HTML, CSS and JavaScript code.